Frost dates in Eau Claire, WI
The average last spring frost in Eau Claire is around April 28 and the first fall frost is around October 17. That gives Eau Claire an average growing season of about 172 days.
Last spring frost
| Early (10% chance after) | April 21 |
|---|---|
| Average (50%) | April 28 |
| Late (90%) | May 13 |
First fall frost
| Early (10%) | September 30 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | October 26 |